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What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Engineers in training can get started with this simple wheel-and-axle construction activity.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

In this fun experiment, we'll find out how color affects heat absorption!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this science fair project, young children notice and track changes in trees throughout the year.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

This science fair project idea designs safe bicycle routes using GPS.

This experiment evaluates whether frequent texters have better finger dexterity compared to people that rarely use text messaging.